[Notice] Update to WebSocket API Orderbook Unit Options on July 2

WEBSOCKET orderbook

Dear Traders,

We would like to inform you of an update to the unit configuration method for the orderbock type in the UpbitWebSocket API.

*Please ensure that this change is reflected in your system or program logic to avoid any disruptions.

We recommend reviewing and applying the update in advance for a more stable service experience.

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Change Details

• Only the following (count) values are supported: 1, 5, 15, 30.
• If an unsupported value is provided, the default (30 units) will be returned.

• More details can be found in this document

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Schedule

• Release Date: Wed, 2nd July, 2025 (KST)
• Supported Countries: Singapore, Indonesia, Thailand
• Docs Version:v 1.2.1or later

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If you have any inquiries, please contact us at [email protected]

We'll get back to you as soon as possible.

Thank you.

Upbit Developer Center